Linux Kernel up to 5.10 Socket Connection net/bluetooth/sco.c sco_sock_getsockopt null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel up to 5.10. The affected element is the function sco_sock_getsockopt of the file net/bluetooth/sco.c of the component Socket Connection Handler. Such manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2020-35499. The attack must be carried out locally. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.10 (Operating System). It has been rated as problematic. Affected by this issue is the function sco_sock_getsockopt of the file net/bluetooth/sco.c of the component Socket Connection Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is confidentiality, and availability.

The weakness was presented 02/20/2021. This vulnerability is handled as CVE-2020-35499. Technical details are known, but there is no available exploit.

Upgrading to version 5.11 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.1
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.11
Patch: git.kernel.org

Timelineinfo

12/17/2020 🔍
02/20/2021 +65 days 🔍
02/20/2021 +0 days 🔍
03/03/2021 +11 days 🔍

Sourcesinfo

Vendor: kernel.org

Status: Confirmed

CVE: CVE-2020-35499 (🔍)
GCVE (CVE): GCVE-0-2020-35499
GCVE (VulDB): GCVE-100-170198

Entryinfo

Created: 02/20/2021 20:27
Updated: 03/03/2021 20:29
Changes: 02/20/2021 20:27 (42), 03/03/2021 20:23 (5), 03/03/2021 20:29 (18)
Complete: 🔍
Cache ID: 216::103

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